The U.S. Department of Labor announced on Friday a $5.2 million settlement agreement with Connecticut-based ING Life Insurance and Annuity Co.,  LifeHealthPro reported. The action stems from ING's undisclosed practice of keeping investment gains realized when it failed to process requested transactions in a timely manner. The settlement will restore funds to approximately 1,400 retirement plans, and represents net gains pocketed by the company due to how certain transaction processing errors were handled between 2008 and 2011.